Give an example that illustrates how to calculate a relative difference. Choose the correct answer below. O A. If the new value is 60 and the reference value is 55, then relative difference = 60-55 60 100% = 8.3%. OB. If the compared value is 50 and the reference value is 45, then relative difference = 50 - 45 = 5. OC. If the new value is 60 and the reference value is 55, then relative difference = 60 - 55 = 5. OD. If the compared value is 50 and the reference value is 45, then relative difference = 50-45 45 100% = 11.1%.